Premium
Radionuclide concentration in tea, cabbage, orange, kiwi and soil and lifetime cancer risk due to gamma radioactivity in Rize, Turkey
Author(s) -
Keser Recep,
Görür Filiz Korkmaz,
Akçay Nilay,
Okumuşoǧlu Nazmi Turan
Publication year - 2011
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.4259
Subject(s) - radionuclide , kiwi , chemistry , transfer factor , soil test , effective dose (radiation) , soil water , orange (colour) , zoology , radiochemistry , horticulture , nuclear medicine , environmental science , food science , biology , medicine , physics , quantum mechanics , soil science , immunology
BACKGROUND: In this study, the activity concentrations of 232 Th, 238 U, 40 K and 137 Cs were measured in tea, cabbage, orange, kiwi and soil samples collected from different stations using gamma spectrometry with a high‐purity germanium detector. RESULTS: The average activity concentrations of 232 Th, 238 U, 40 K and 137 Cs were found to be 8.2 ± 1.8, 17.3 ± 3.3, 465.8 ± 11.8 and 20.9 ± 3.8 Bq kg −1 in food samples, and 72.4 ± 9.8, 51.1 ± 8.3, 229.3 ± 14.7 and 312.9 ± 11.5 Bq kg −1 in farm soils, respectively. The internal effective dose to individuals and excess lifetime cancer risk from the consumption of the food type radioactivity ranged between 11.7 and 53.6 µSv y −1 and between 0.05 × 10 −3 and 0.24 × 10 −3 , respectively. The annual external gamma effective dose and excess lifetime cancer risk in the farms due to soil radioactivity ranged between 94.1 and 139.8 µSv y −1 and between 0.43 × 10 −3 and 0.64 × 10 −3 , respectively. The mean transfer factors of 232 Th, 238 U, 40 K and 137 Cs, from the soil to vegetables and fruit were 0.57, 0.32, 2.12 and 0.04, respectively. CONCLUSION: Annual effective gamma doses were found to be higher than the world's average in soil samples. The excess lifetime cancer risks were only found higher than the world's average in soil samples. Copyright © 2011 Society of Chemical Industry